Home / 30,000.30-41,400.45-16,572.30

Finding the Fourth Proportional to 30,000.30, 41,400.45 and 16,572.30

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Solution

The fourth proportional to 30,000.30, 41,400.45 and 16,572.30 is: 22,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000.30 : 41,400.45 = 16,572.30 : x
  2. Step 2: Convert to fraction form
    30,000.30/41,400.45 = 16,572.30/x
  3. Step 3: Cross multiply
    30,000.30x = 41,400.45 × 16,572.30
  4. Step 4: Simplify right side
    30,000.30x = 686,100,677.54
  5. Step 5: Solve for x
    x = 686,100,677.54/30,000.30
  6. Step 6: Final answer
    x = 22,869.79

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.